00/01525 Coal gasification combined-cycle power generation apparatus

2000 ◽  
Vol 41 (3) ◽  
pp. 169-170
Keyword(s):  
Power Generation ◽  
Coal Gasification ◽  
Combined Cycle

scholarly journals Development of a Low-NOx LBG Combustor for Coal Gasification Combined Cycle Power Generation Systems

1989 ◽  
Author(s):  
M. Sato ◽  
T. Abe ◽  
T. Ninomiya ◽  
T. Nakata ◽  
T. Yoshine ◽  
...  
Keyword(s):  
Power Generation ◽  
Gas Turbine ◽  
Gas Turbines ◽  
Coal Gasification ◽  
Combined Cycle ◽  
Generation System ◽  
Combustion Technology ◽  
Power Generation System ◽  
Combustion Tests ◽  
Power Generation Systems

From the view point of future coal utilization technology for the thermal power generation systems, the coal gasification combined cycle system has drawn special interest recently. In the coal gasification combined cycle power generation system, it is necessary to develop a high temperature gas turbine combustor using a low-BTU gas (LBG) which has high thermal efficiency and low emissions. In Japan a development program of the coal gasification combined cycle power generation system has started in 1985 by the national government and Japanese electric companies. In this program, 1300°C class gas turbines will be developed. If the fuel gas cleaning system is a hot type, the coal gaseous fuel to be supplied to gas turbines will contain ammonia. Ammonia will be converted to nitric oxides in the combustion process in gas turbines. Therefore, low fuel-NOx combustion technology will be one of the most important research subjects. This paper describes low fuel-NOx combustion technology for 1300°C class gas turbine combustors using coal gaseous low-BTU fuel as well as combustion characteristics and carbon monoxide emission characteristics. Combustion tests were conducted using a full-scale combustor used for the 150 MW gas turbine at the atmospheric pressure. Furthermore, high pressure combustion tests were conducted using a half-scale combustor used for the 1 50 MW gas turbine.

300 MW Combined-Cycle Plant With Integrated Coal Gasification

1984 ◽  
Author(s):  
Rolf H. Kehlhofer
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Gas Turbines ◽  
Power Plants ◽  
Coal Gasification ◽  
District Heating ◽  
Combined Cycle ◽  
Liquid Fuels ◽  
Combined Cycle Plant ◽  
The Individual

In the past 15 years the combined-cycle (gas/steam turbine) power plant has come into its own in the power generation market. Today, approximately 30 000 MW of power are already installed or being built as combined-cycle units. Combined-cycle plants are therefore a proven technology, showing not only impressive thermal efficiency ratings of up to 50 percent in theory, but also proving them in practice and everyday operation (1) (2). Combined-cycle installations can be used for many purposes. They range from power plants for power generation only, to cogeneration plants for district heating or combined cycles with maximum additional firing (3). The main obstacle to further expansion of the combined cycle principle is its lack of fuel flexibility. To this day, gas turbines are still limited to gaseous or liquid fuels. This paper shows a viable way to add a cheap solid fuel, coal, to the list. The plant system in question is a 2 × 150 MW combined-cycle plant of BBC Brown Boveri with integrated coal gasification plant of British Gas/Lurgi. The main point of interest is that all the individual components of the power plant described in this paper have proven their worth commercially. It is therefore not a pilot plant but a viable commercial proposition.

Electricity From Coal: The British Gas/Lurgi Gasification for Combined Cycle Power Generation

1986 ◽  
Author(s):  
Helmut E. Vierrath ◽  
Peter K. Herbert ◽  
Claus F. Greil ◽  
Brian H. Thompson
Keyword(s):  
Power Generation ◽  
Gas Turbines ◽  
Power Plants ◽  
Coal Gasification ◽  
Environmental Control ◽  
Combined Cycle ◽  
Flue Gas Desulfurization ◽  
Waste Streams ◽  
Heat System ◽  
Coal Power Plants

It is widely accepted that coal gasification combined-cycle plants represent an environmentally superior alternative to conventional coal fired power plants with flue gas desulfurization. Purpose of this paper is to show that technology is available for all steps required to convert coal to electricity, including treatment of waste streams. Based on examples for power plants in the 200–800 MW range using current and as well as advanced gas turbines, it is shown that under both European and US-conditions cost of electricity from this (new) route of coal based power generation is certainly no higher — and probably even lower — than from conventional PC (pulverized coal) power plants equipped with equivalent environmental control technology. Thus, this technology is likely to be a prime contributor when it comes to enhance environmental acceptability of power plants in general, and to help solve the acid rain problem in particular. In addition the versatility of the proposed technology for repowering, decentralized application and district heat system is explained.

Feasibility of IGCC Technology for Power Generation in India

2004 ◽  
Author(s):  
Benjamin Reuben
Keyword(s):  
Power Generation ◽  
Feasibility Study ◽  
Coal Gasification ◽  
Thermal Power ◽  
Pollution Prevention ◽  
Combined Cycle ◽  
Commercial Application ◽  
Operating Efficiency ◽  
New Delhi ◽  
The World

The paper evaluates the emerging coal gasification technology now operational in many parts of the world to produce electric power through Combined Cycle mode in the present coal dominated power scenario in India. The initiatives of United States Agency for International Development (USAID)-New Delhi, India together with an Indian utility National Thermal Power Corporation (NTPC) and supported by a consortium of experienced international agencies for feasibility study of commercial application of coal based IGCC technology for producing 100MWe in India are enumerated. India with a population of one billion, a fifth of the world’s population ranks sixth in the world in terms of energy demand. It has only about 0.4 percent of world’s natural gas which contributes only 10 percent to power generation as against 65% by coal in the present total installed capacity of 107000 MW. The estimated coal reserves in India of 211 billion tonnes are likely to last for about 150 years as against oil and gas reserves that will get depleted in less than 50 years. Notwithstanding the ongoing debate in India between LNG versus coal for emergence of a mature and economic future fuel for power generation in India, over 60% of the 100,000 MW power demand required in the next 10 years in India is expected to be provided on coal, USAID-New Delhi has commissioned under its expanded Green House Gas (GHG) Pollution Prevention Project, a feasibility study of the IGCC Power plant in India. Therefore, application of the coal gasification combined cycle process, an emerging technology for clean, efficient and low CO2 emission coal fuelled generation thro GE’s advanced H-system turbine and providing high operating efficiency of 43% would be appropriate to serve as a base technology for greenfield projects and as a repowering option for vintage coal fired plants totaling 25000 MW now operating over 30 years.

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